Completes the install-target matrix for Claude Code. Until now, ECC's
Claude support was home-scope only (~/.claude/) via the `claude` target.
This adds a project-scope counterpart (./.claude/) via a new
`claude-project` target so teams can install ECC per-repo without
contaminating ~/.claude/ — matching the existing project-scope adapters
for Cursor, Antigravity, Gemini, CodeBuddy, Joycode, and Zed.
Symmetric with `claude`:
- Same namespace under rules/ecc and skills/ecc
- Same docs/<locale> handling for --locale
- Same hooks placeholder substitution for hooks.json
- Reuses claude-home's destination-mapping logic 1:1
Use cases:
- Monorepos with multiple Flow-managed projects
- Teams that want ECC scoped per-project without touching ~/.claude/
- Per-project skill/rule isolation when global install isn't desirable
No breaking change: existing --target claude continues to route to
claude-home (user-scope) unchanged. New target is opt-in.
Tests
-----
- 4 new tests in tests/lib/install-targets.test.js
(root resolution, lookup-by-id, plan parity with claude, foreign-path filtering)
- All install-target regression guards (schema enum / SUPPORTED_INSTALL_TARGETS)
still pass
- End-to-end smoke: `--target claude-project --profile minimal --dry-run`
emits 359 ops with destinations rooted at <projectRoot>/.claude/ (parity
with --target claude which emits 359 ops rooted at ~/.claude/)
